Hoist.



- PATENTED FEB. 17, 1903.

W. L. M CCA BE. I'IOIST.

UNITEDI STATES PATENT QFFICE.

WILLIAM L. MOCABE, OB SEATTLE, WASHINGTON.

HOIST.

SPEGIFIGATIOIT forming part of Letters Patent N0. 721067date61 Februaryfl 7, 1903.

Applioatiofi fileli March 1, 1902. Serial N0. 96,338. (N0 model.)

T0 all wlwm z't mag c(mcern:

Be it known that I, WILLIAM L. l\/ICCABE, a eitizen of the United Stauesresidingat Seatble, in the oounty of Klug and State of Washington, have invented oertain n'ew and us ef 111 I mprovemen ts in Hoists; and I do hereby deolare the following to be a full, olear, and exact description 0f the inventsion, such as Will enable others skilled in the art to whioh lt appextaihs 150 make and use the same.

This invention relates 130 improvetnents in hoists,and more partioularly to tho'se designed for loading and nnloading purposes.- v

The object in view i s the provisionof meanS for lifting an artiole to be moved;to'a given horizontalplane, moving the same in saida plane a given distance, and lowering the said artiole into the position desired.

With this and other objects in 'view the invention consists in cerain novel oonstruotions, oombinatioris, and arrangements of parts, as will be hereinafter'full-y describedt and olaimed.

In the aocompanying drawings, Figure 1 is a perspeotive view 'illu'trating one embod iment of the present invention applied 10 a ship. Fig. 2 represents an enlarged denail edge view of the looking-pulley. Fig. 3 represents a vertical seotion taken 011 the plane of line 2 2 through the same. Fig. 4 represents an enlarged detail fragmen tary view of a portion of the brake and its operating-lever.

Referring to the drawirigs by numerals, 1 indioates any sui lgable s upport, in the partioular embodiment: at--present diselosed being the yard of a suitable maslt 2, towhioh it is attached in any suitable and Well-known manner, said mast beingcarried by'a su it able support, as a ship. A suitable stay, as 3, is atbaehed to mast 2 and. seoured ab its lower end by any preferred means. Carried by the stay 3 011 a horizontal plane, approximately the san1e as thab of yard l, are bloeks, as 4 and 5, whioh in operahion bear the weight 01: the artidle operated upon, and in Order 130 prevent lateral sagging of said stays 3 a block, as 6, is attaohed lahereto, and an ofi-shore line 7, s ecuredat one end 110 yard l, is passed about the pulley 6, then abot the pnlley of a block 8, attaohed so yard. l, and finally made fast ab its free end in any suitable manner to the gunwale of a vessel. About the pulleys of blocks 4 and 5, which serve as supp01 ts, pass the oables 9 ahd 10, respectively, cable 9 oarrying a block 13 an one end and a "similar block 14 ab the olaher, and Gable 10 carrying similar blocks 11 and 12 atits ends. A oable, as 15, has ius ends seeured against movennenta and is designed 110 trave1 over' the pulleys of blocks 11 and 13 and also over fixed pulley 16, whereby a movenient'of either of blboks 11 o1 13 away from pulley 16 will cause the other 170 move toward the same.

At the inner or shore end 0f yard 1 are oarried blooks 17 and 18, designed L0 have cab les 19 and 20, respeotively, passed ab0ut the pulleys thersof. Theinnerend of eaoh of oables l9and 20 is attaohed a-sitable windingdrum, as 21, of the single o1 donble type, as desired, and of well-known oonstruotion, the particulrdrm shown being of thesingle type, with the cables attaehed in such a way as to be won nd in in opposite direotions, so thab rotation of said drum in either direetion will; wind one of said oables and pay 01111 the other. Any si1itable carrying means, as a hoo'k2l, is seoured to*the free end of oable 20, and sirnilar earrying means, as 22, is seoured to the free end of cable 19. In will be observed that eithor Gable 20 or oable 19 may be operated alone when desired without the employment of the other oable, and in such a case I prefer to secure bat one end of oable 15 and pa.ss the ot her end through pulley 16, the slaok of oable 15 being preferably haken -up by hand When the load-carrying cable is being paid out by drum 21, and when said -loald-carryingcable is being drawn in by drum 21 the cable 15 may be conurolled by pulley 16, as above desoribed.

In the operataion of the pressent device it; is desirable ab times to look the cable 15 against movement, and in Order to aecomplish such resulta the pulley 16 is journaled in any suit able fran1e 23, anohored to any forma of base in any preferred and wellknown manner. The pulley 16 is of eonrse formed witha circumferential groove for guiding the oable 15. Enoiroling the pulley 16 is a str2tp 24, form6d with slots 25 'and 26 for the passage of oabl e 15 and carrying brake-shoes 27 .and- 28,1:he shoe 27 being formed with a longitudinal gfoove 29, designed 110 fit snugly about the cable 15, and the shoe 28 being formed with a longitudinal bead 30, concentric win'n and lying witl1in the circnmferential groove of pnlley 16. The frame 23 is formed with laterally-projecting arms 31 31, being oonnected ab their frce ends by any snitable shaft 32. Pivotally connected to shafla 32 is any preferred form of lever, as 33. One end of strap 24 is pivotally attaohed, as ab 34, 110 the inner end of lever 33, which exbends beyond the pivotal point of said lcver, and the opposite end of said strap 24 is pivotally attaohed, as ab 35, to lever 33 outzside of its pivota-point. It will be apparent; from the foregoing description that; downward movement; of the outer end cf lever 33 will have a tendency to lap the ends of the strap 24, whereby the bead 30 of the shoe 28 will be cansed to frictionally engage pnlley 16, while the shoe 27 will be pressed npwardly 110 close contact with the cable 15, wherebythe movemenb of said cable and pnlley maybe decreased or stopped altogethcr, as desircd.

The operation of the present device may be set forth as follows: Assuming the parts t;o be in the respcctive relations disclosed in Fig. 1 of the drawings, the drum 21 is cansed 110 rotate in a direction for winding in of cable 20, the pnlley 16 being locked againsb movement. The aricle snpported by hook 21 will be caused 130 move in a vertical plane as long as cable 15 and pulley 16 remain stationary; bot as soon as the hook 21 reaches the desired horizontal plane the said pulley 16 and cable 15 are released, permitating block 11 to rise and pulling block 13 downwardly, thereby moving block 14 in the direcoion of the mast2 2 and swinging hook 22 in position to receive an article o0 be conveyed. The weight of the article snpporbed by hook 21 being relatively grea'ner 'ohan that of hook 22 will canse the said movement of the parts, said article when in a given horizontal plane moving With block 12 inshore 011 the said horizontal plane for compensating for the intake ot cable 20. When the hook 20 has arrived als the desired vertical plane, the cable 16 and pnllcy 15 are again locked, and the drum'2l is caused 110 robate in an opposite directzion for paying oub cable 20 and permitting the hook 21 to descend in a vertical plane. The operation with rcspects to hook 22 and its Gable 19 will be preciscly the same as described with reference 10 hook 21 and cable 20.

In Fig. 1 of the drawings I have shown in dotted lines an arm, as 36, secnred transversely of the inner end of yard 1, and I have dotted in position blocks 17 and 18 an the op posite ende of said arm, this arrangemen being employed by me when desired for keeping the cables 19 and 20 sufficiently spread t10 prevent entangling of hooks 21 and 22 during operabion. Of co'urse this arm 36 may or may not be used, as found desirablc, and althongh I have specifically S611 forth the minor details of one particnlar enxbodiment; of the present improvemcnt yct1 I desire it 110 be decidedly understood that I shall feel ab liberty to deviate therefrom to any degree wit-hin the spirit and scope of the present; invention.

Having ohus fully described my invenion, what I claim as ncw, and desire to secure by Letters Patent, is

1. In a hoist, the combination wibh a suicable yard and a snitable stay, of a block carried by said yard, a block carried by said stay, a cable passed throngh the block of said stay and carrying a block an each end, a cable passed through the block of said yard and one of the blocks of said cable, means for moving said last-mentioned cable longitudinally, a cable passed lzhrough the other block of the first-menuioned cable, and means for locking the same againsts movement, substantially as desoribed.

2. A hoist, comprising a snitable snpport, a block carried thercby, a cable passed about; the pnlley of said block, and carrying a block, a second cable passed abont; the said last;- mentioned block, means for moving said lastrnentioned cable longitudinally, and means for governing the longitudinal movement of said first-menbioned cable, snbstsantially as described.

3. In a mechanism of the class described, the combinabion wich a suitable support, of a block carricd thereby, a longitudinally-movablc cable passed about the pulley of said block, a second longitudinally-movable cable slidably eonnect6d with one end of said firstmentioned cable, means for moving said second mentioned cable longitndinally, and means for governing the longitudinal movement of said first-mentioned cable, substan- Lially as dcscribed.

4:. In a mechanism of the dass described, the combination wit1h a suitable support, of a longitudinally-movable cable mounted thereon, a second longitsndinally-movable cable slidably connected with one end 0f said firstzmen'oioned cable, means for moving said last;- mentioned cable longitmdinally, and a cable slidably connected with the free end of said first-mentioned cable for governing the longit;udinal movement; nhereof, substantially as described.

5. In a mechanism of the class described, the combination with a suitable snpport, of a longitudinally-movable cable mount1ed thereon, a second longitudinally-movable cable slidably connected with one end of said firstamentioned cable, means for governing the movement of said firsts mentioned cable whereby the movementaof said last-mentioned cable may be governed, and means for moving said second-mentioned cable longitudinally, subsbanbially as described.

6. In a mechanism of the class described, the combination with a snitable snpport, of a longitudinally-movablo cable monnted thereon, a longitudinally-movable cable engaging said firsta-mentioned cable, means for locking said lasts-mentioned cable against movement, whereby movemeni; of said first-mentioned cable may be prevented, a longitudinallymovable cable slidably conneeted. with Ehe free end of said first-menaioned cable, and. means'for moving said last-mentioned cable longitudinally, substanbially a.s deseribed.

7. In a mechanism of the dass described, the combination witzh a suitable supporls, 0f longitudinally-movable cables mouned thereon, a eable s1idably connected with each 015 said firsp-mentaioned eables means for governing the movement of said 'last-mentioned eable,- whereby Ehe rnovement of said firsc-mentioued cables may be governed, a longitudinally-movable cable slidably eo'nneeted with each 0f said firso-mentaioned cables, and rneans for movingeach of said last-mentioned eables longitudinally, substantially as described.

8. In a meehanisnn of the dass described, the combination with a suitable support, 0f a cable having both of it1s ends fixed against;

In testimony whereof I hereunto afifix my 3 5 signature in presence of tawo wi'tnesses.

WILLIAM L. MGCABE. WitnesseS:

JOHN L. FLETOHER, EDGAR M. KITCHIN. 

